中文摘要：

【目的】有机肥投入不足将加剧土壤营养失衡和基础肥力下降,严重威胁农业和农村经济的可持续发展,如何采取措施引导农户增施有机肥已成为中国农业可持续发展的关键。本研究的目的就是评价合同生产模式对农户有机肥行为的影响。【方法】利用山东省苹果种植户实地调查数据,实证分析合同生产模式对农户有机肥施用行为的影响及其作用机理。【结果】销售合同、生产合同、果园离家距离、果园规模、农户有机肥认知程度、家庭非农收入比重与农户有机肥施用量之间呈显著正相关,化肥施用量、家庭劳动力数量与农户有机肥施用量之间呈显著负相关。【结论】在其它条件不变的情况下,农户与合作社签订销售合同和生产合同分别可以使其增施有机肥约678元/hm2和1 497元/hm2;此外,果园离家距离、果园规模、农户有机肥认知程度、家庭劳动力数量和非农收入比重也是影响农户有机肥施用行为的重要因素。

英文摘要：

【Objective】As the lacking application of organic fertilizer will exacerbate the soil nutrients imbalance and fertility decline and be a serious threat to sustainable agriculture and rural economic development as well,how to take effective measures to guide farmers to adjust their fertilization structure is a problem to be solved in the process of China＇s agricultural development.The objective of the research is to study the impact of contract production on farmer＇s organic fertilizing behalior.【Method】 Using the survey data on apple growers in Shandong Province,this paper aims to evaluate the impact of contract production on organic fertilizer use behavior and the underlying mechanism.【Result】The analysis demonstrates that,marketing contract,production contract,orchard distance from house,orchard size,awareness of organic fertilizer and the proportion of non-agricultural income have a positive correlation with organic fertilizer application.Fertilizer application and the amount of labors have a negative correlation with organic fertilizer application.【Conclusion】When other conditions are the same,farmer signed marketing contract and production contract will increase organic fertilizer application by 678 yuan/hm2 and 1 497 yuan/hm2,respectively;orchard distance from house,orchard size,awareness of organic fertilizer,the amount of labors and the proportion of non-agricultural income are also important factors in farmer＇s decision-making of organic fertilizer use.